playing around with the polling listener
Merge branch 'master' into jnoir
a little bit of refactoring

world and cars are now created by polling event thingies
Merge branch 'jnoir' into cblank
removed redundant folder
on my way to create notify event car thing
only starts 6 event handlers
thread pool of notifying things to move cars
cars are move via pollign thread pool
bugfixes
seems to work

todo
* check if still works
* add more 'drivers'
* traffic lights
Merge branch 'jnoir' into cblank
hmmm
stuff
cars sleep for 10msec
new pics for traffic lights (2nd try)
added traffic lights

only reactive lights work atm.
added timed traffic lights
bug fixed

I noticed this while implementing the timed cars. Direction
of the next roxel should depend on the direction of the car
and not the roxel.
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